fix: adding nil check

Author: bejjrajesh

src/plugins/dataplane_status.go

@@ -147,7 +147,7 @@ func (dps *DataPlaneStatus) Subscriptions() []string {
 
 func (dps *DataPlaneStatus) updateNginxConfigActivityStatuses(newAgentActivityStatus *proto.AgentActivityStatus) {
 	log.Tracef("DataplaneStatus: Updating nginxConfigActivityStatuses with %v", newAgentActivityStatus)
-	if _, ok := newAgentActivityStatus.GetStatus().(*proto.AgentActivityStatus_NginxConfigStatus); ok {
+	if _, ok := newAgentActivityStatus.GetStatus().(*proto.AgentActivityStatus_NginxConfigStatus); dps.nginxConfigActivityStatuses != nil && ok {
 		dps.nginxConfigActivityStatusesMutex.Lock()
 		dps.nginxConfigActivityStatuses[newAgentActivityStatus.GetNginxConfigStatus().GetNginxId()] = newAgentActivityStatus
 		dps.nginxConfigActivityStatusesMutex.Unlock()